This
project studies how climate policy networks around the United States are
evolving. It documents the ideological and policy networks operating at the
state and federal levels on climate/clean energy issues and observes how they
are changing over time. The research maps out what clusters are forming around
particular climate-related issues, what explains the formation of these
clusters, and how they are related to specific policy actors.This project is funded by the MacArthur
Foundation.

This project analyzes the people who
participate in large-scale protest events around the world: who are they, what
motivates them to protest, and how are they connected to one another. Current
research on this project is focusing on analyzing data collected from the large-scale demonstrations in the Resistance
(ie those that have taken place since the inauguration of Donald Trump in January 2017). Much of this research is being synthesized in
American Resistance (Under
Contract, Columbia University Press).

This project, which is a collaboration with
colleagues at the US Forest Service, studies how civic groups are working
together to steward their local communities in cities in the United States.
Funded by the US Forest Service (USFS) and a grant from the National Science
Foundation, we studied these groups in New York City starting in 2007. More
recently, we conducted a similar census of groups in Philadelphia. These data
arel being analyzed and compared with other cities.